Fnventor



Sepia m ma ,6

A. THlgLEN HOIST Filed August 5. $925 a Sheets-$heet 1 INVEN'IIOR 45.1%. Wile/en,

BY I W A ATTORNEY Sept. 14 1926.

1,599,690 E. A. THIELEN HOIST Filed August 5. 1925 3 Sheets-Sheet ta I; {L Z5 INVENTOR 'ATTQRN EY Sept. 14 192s. 1,599,690

' E. A. THIELEN 251A. Wale/en.

Q BY 5 8 T ATTORNEY.

Patent d Sept, 1926. v

nrowaan A. THIELEN,

OF DORRANCE, KANSAS.

Application filed August 5, 1925. f Serial No. 48,383.

- The invention relates to an improved hoist more particularly adapted for use in garages, machine shops and factories for the purpose of quickly and safely raising automobiles, trucks, etc., in order that themevide a means of the class described, arranged chanical parts thereof may be conveniently ly being regular equipment in practically all places where the hoist would. be used.

Another object of this invention is to proand designedto beinstalled below, the floor in such manner that, when inoperative, the device does not in any manner interfere with regular work abovejthe floor, and when in operation only a limited number -of parts extendabove the floor, thereby greatly re ducingthe annoyance,to workmen,'of bulky and interfering parts usually found in de vices of this nature which have come to my attention, ,l

A further object of this invention is to provide a hoist of the class described which is disposed to operate entirely by a pushing up action, thereby wholly eliminating danger to life and property incident to the breaking of chains, etc. a j i It is a further general obj ect of the invention to provide a hoist for the above purpose consisting of relatively few parts "which are all of simple construction inorder that the device may be produced 'at comparatively small manufacturing cost. I I I lViththe above and otherobjects in view, my invention further consistsin the novel features of construction, combinations and arrangement of parts and units, all of which will'be first fully described in the following detailed description and illustrated in the accompanying drawings. It is to be under stood, however, that the form chosen for illustration may be modified without departing from the spirit of the invention as expressedin the claims. Y

In the drawingsr- Figure 1 is a side elevation 'tionary unit of my hoist. I a Y Figure 2 is an end elevation of the stationary unit of the hoist- Figure 3 is a plan view of the stationary unit of the hoist. l i I of the sta- Figure an a summat on of the sliding unit of the hoist.

' Figure 5is an end elevation of the sliding unit of the hoist.

. Figure 6 is a somewhat diagrammatic side elevation of the hoist assembled for use, the same being shown with the sliding partthereof elevated. g

Figure 7 is an end elevation of assembled for use, the same being shown with the sliding part thereof elevated.

Figure 8 is a detail vertical cross section ofth'e lower end of the operating cylinder. FigureQ is an enlarged detailhorizontal section taken on the line 99 on Figure 7. teferring in detail to the drawings,.Figures 1, Qand 3, the upright members 1 and 2 of the stationary unit, are formed in a channel shapefrom heavy sheet-steel and are rigidly ijnaintained in position by cross the hoist angles 8' at the lower ends and centers and by the/cross angles l at the tops.

To prevent deflection or buckling of the members 1 and 2, the sheet steel brace plates 5 and, 6 are securely attached to the same and to the cross angles 3 and 4 by means of bolts or rivets 7. I

I At the bottom ofthe unit, angles 8 are provided as means for a support or rest, and arefdisposed to be securely fastened to the floor ofthe pit or basement.

The top angles 4, as will be noticed, extend-a distance beyond the uprights 1 and 2 and are intended to be attached tothe main floor of the garage or shop, thus rigidly supporting the top section of the unit, It is clearly obvious, it is thought, that proper anchoring of angles 4 and 5 will provide for ample rigidity of the unit. 1 v i c An air chamber or cylinder 9 is provided and maintained in upright position between metallic heads 10 and. 11 through the medium of four stay rodslil, and this whole combination is securely attached tothe cross angles 3, ofthe unit, by boltsl3, any suitablemeans 14 being provided to prevent the escape of air from between the ends of the cylinder 9 and the heads 101l. Thecylinderhead 11 is provided with anopening to, permit passage of the piston rod or pipe .15, the lower end of which is attached tothe piston head 16, the opposite end of the piston i rod being connected with the lifting plate 17 which in turn is attached to the cross member 18 of the sliding unit. See Figures I e and 6.

Referring to Figures l and illustrating the sliding unit it will be observed that channel steel vertical slide members 19 are provided and are connected intermediate their ends by the cross channel iron 18 through the medium of corner brackets 20 and bolts 21. A parallel relative position oi the men'ibers 19 is assured by'ine'ans of the brace pines 22 secured as at 23 to the members l8 and 19. In order that accurate adjustment of members maybemade, each said member "is provieed at each end respecively with a right and a left hand screw thread, the support castings 23 being threaded likewise.

The wheel rest casti gs attached to 1 u per ends of members l9by means of c and are desi; red to conform gento the periphery of automobile or wheels, thereby preventing movement an automobile or truck being rai ed or ted.

Aknowledge of the detailed construction of the air cylinder 9' -and piston 16 may be had by reference to Figure 8 in which 9 designates the cylinder proper, the lower end of which is maintained in engagement with the head by means of stay belts or rods 12. A short distance from the end of the pistonrod or pipe 'is located a nut 26 adapted to engage the upper one of the plates 2728 contributing in formation of the piston lead 16. The leather gasket or ring 29 is firmly held between the members 27 andZSby means i the nut 30.

As will be noticed, the edge'of the gasket 29 extends for a distance below section 28 and is formed in such manner that a close contact withthe cylinder wall'ismaintai'ned. \Vhen air pressure to the cylinder is admitted, the tendency of the gasket 29 to extend outwardly is increased, thereby making the escape of tluid'pressure between-the cylinder wall and gasket practically impossible.

The cylinder head 10 is provided in the center with a boss 31 adapted to engage the end of the piston rod or pipe 15 on the downward movement, thereby preventing the gasket 29 from coming in contact with said head. Fluid pressure is admitted to the cylinder at the lower end only through the medium of the pipe 32 which is connected to a supply line 33 from a tank 3a or other source of supply. The pressure is controlled by a suitable three-way valve 35 spliced in the line The first position of the valve lever admits fluid tothe cylinder which raises the sliding member of the'hoist to the desired h ight the second position or" the valvelever will cut oil the flow of pressure to-the cylinder, thus allowing tne sliding member to remain stationary in an elevated position, and the third posit-ion of the valve lever permits the fluid within the cylinder to escape and permit the hoist to tjoggivil. C ne- 0 m in wear and guide strips 3'6 may secured to the insides 'oitthe s rides l and Eby the bolts By providing the metal the of he si e channel me the shun unit are prevente in conta'ct'with the rounded increased fiction at these pla es. n. ato be noticed that the heads orthe bolts serve as a gui ling means for the members'Ql.

in referring hates the floor" is installed.

J1 1 .1. 301st ms t 7 1- iv. be removable to permit access ch of the hoist. The side walls h )it in which the device 15 placed are t e desi nated '40 and the lower door or foundation for supporting the hoist should be of concrete or other suitable substantial nature.

should clearly obvious that the fluid pressure sup ly tank and control va may be placed atany convenient point about the premises.

From the foregoing description, taken in connection with the accompanying drawing, it is th'oughtthe novel details oi construction, mannero'i operation and advantages of my invention will be readily apparent to those skilled in the art to which it relates.

W hat I claim is:

l. A device of the class desc ibed conr prising, astationary unit including vertical guide standards,-a cylinder, a plunger and piston vertically movable in the cylinder, means for admitting fluid pressure to move said piston, means for controlling said flui d pressure; and a vertically movable unit secured to the plunger to move therewith and havingvertical inen'ibers slide-guided in said guide standards and adapted when moved to lift or lower articleto be lifted or lowered, said vertical guide standards havin vear strips bolt-secured thereto, said bolts being positioned for having their heads act as retaining mediums al the slideguid'ed vertical members.

2. A device of the class described comprising, a stationary unitincluding vertical guidestandards, a cylinder, a plunger and piston vertically movable in the cylinder, means toradmitting fluid pressure to move said piston, and means for controlling said fluidpressure, and a vertically movable unit secured to the plunger to move therewith and having a pair of vertical members slidegulded in said guide standards and adapted when moved to lift or lower an article to be lifted or lowered, said slide-guided vertical member each having a cupped head secured at its upper end for the purposes specified. o

3. A device of the class described comprising, a stationary unit including vertical guide standards, a cylinder, a plunger and piston vertically movable in the cylinder,

means for admitting fluid pressure to move,

said piston, and means for controlling said fluid pressure;'and a vertically movable unit to be moved by said plunger for lifting and 1 lowering articles to be lifted. and lowered,

said'movable unit comprising vertical menibers slide-guided by said guide standards, a

, cross bar joining the vertical members intermediately oftheir ends and to which the plunger is secured, and adjustable diagonal braces secured'to the cross beam and each vertical member for the purposes specified.

4:. A'device of the class described com prising, a stationary unit including vertical opposed channel guide standards, upper, lower, and intermediate brace angles secured to the standards, a cylinder, top and bottom closure plates for the cylinder, stay bolts securing the plates and cylinder as a unit, bolts securing the plates to the lower and intermediate brace angles to secure the cylinder in upright position, a piston operable in the cylinder, a plunger securedto move with the piston and extending just above the intermediate brace angles when at its lowcred position, means for admitting fluid pressure to move said piston, and means for controlling said fluid pressure; and a vertically movable unit secured to the plunger tomove therewith and having vertical members slide-guided in said guide standards and'adapted when moved to lift or lower an article to be lifted or lowered.

5. A device of the classdescribed comprising, a stationary unit including vertical opposed channel guide standards, upper, lower, and intermediate brace angles secured to the standards, said upper brace angles being extended to facilitate securing of the device to the bottom of an operating floor, iteet secured to the standards and extended its lower position, means for admitting fluid pressureto move said piston, and means for controlling said fluid pressure; and a; vertically movable unit secured to the plunger to move therewith and having vertical members slide-guided in said guide standards and adapted when moved to lift or lower an article to be lifted or lowered.

EDWARD A. ,THIELEN. 

